Underground drainage facility, vertical-shaft multi-stage adjust

Details Underground drainage facility, vertical-shaft multi-stage adjust Underground drainage facility, vertical-shaft multi-stage adjust

1992-12-10

1994-11-01

Taylor, Dennis L.

Hydraulic and earth engineering

Fluid control, treatment, or containment

1372361, 210170, 405 37, 405 80, E02F 100, E02B 1100

Patent

active

053602900

ABSTRACT:
An underground drainage facility including a drainage pump adapted to be operated if an inflow water channel is constructed as a closed channel. Overflow weirs in water channels such as rivers or the like on an inflow side are less than a maximum water level. A vertical-shaft multi-stage adjustable-vane impeller is used as a drainage pump. Consequently, even a drainage pump of a high pressure head and large capacity can perform a waiting running and accommodate a variation in a quantity of inflowing water to the drainage facility.

REFERENCES:
patent: 3626823 (1970-02-01), Toth
patent: 3919848 (1975-11-01), Sullivan
patent: 4457646 (1984-07-01), Laesch
patent: 4890955 (1990-01-01), Mercier
patent: 4997312 (1991-03-01), Regan

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